riscv/musl - musl - Gitea: Git with a cup of tea

4709 Commits

2 Branches

78 Tags

7.6 MiB

Tree: 6d8a515796

Commit Graph

Author	SHA1	Message	Date
Rich Felker	7cbb6f70c8	fix system breakage window during make install due to permissions install.sh was wrongly waiting until after atomically replacing the old file to set the correct permissions on the new file. in the case of the dynamic linker, this would cause a dynamic-linked chmod command not to run (due to missing executable permissions on the dynamic linker) and thus leave the system in an unusable state. even if chmod is static-linked, the old behavior had a race window where dynamic-linked programs could fail to run.	13 years ago
Rich Felker	ceacb6a4cf	fix mv usage in install.sh to avoid bogus interactive prompting	13 years ago
Rich Felker	e678fc6f32	replace system's install command with a shell script the historical (non-standardized) install command is really inappropriate for installing binaries/libraries on a system that utilizes memory-mapped executable files. rather than replacing an existing file atomically, it overwrites the existing file. this can cause running programs to see a partially-modified version of the file, resulting in unpredictable behavior, or SIGBUS. a MAP_COPY mode for mmap would get around this problem, but Linux lacks MAP_COPY. the shell script added with this commit works around the problem by writing temporary files and moving them into place. unlike the historical install utility, it also support a -l option for installing a symbolic link atomically, via the same method.	13 years ago

Author

SHA1

Message

Date

Rich Felker

7cbb6f70c8

fix system breakage window during make install due to permissions

install.sh was wrongly waiting until after atomically replacing the
old file to set the correct permissions on the new file. in the case
of the dynamic linker, this would cause a dynamic-linked chmod command
not to run (due to missing executable permissions on the dynamic
linker) and thus leave the system in an unusable state.

even if chmod is static-linked, the old behavior had a race window
where dynamic-linked programs could fail to run.

13 years ago

Rich Felker

ceacb6a4cf

fix mv usage in install.sh to avoid bogus interactive prompting

13 years ago

Rich Felker

e678fc6f32

replace system's install command with a shell script

the historical (non-standardized) install command is really
inappropriate for installing binaries/libraries on a system that
utilizes memory-mapped executable files. rather than replacing an
existing file atomically, it overwrites the existing file. this can
cause running programs to see a partially-modified version of the
file, resulting in unpredictable behavior, or SIGBUS. a MAP_COPY mode
for mmap would get around this problem, but Linux lacks MAP_COPY.

the shell script added with this commit works around the problem by
writing temporary files and moving them into place. unlike the
historical install utility, it also support a -l option for installing
a symbolic link atomically, via the same method.

13 years ago

3 Commits (6d8a515796270eb6cec8a278cb353a078a10f09a)